Vending machine



FIG. 1 is a front perspective view of a vending machine showing my new design;

FIG. 2 is a front elevation view of thereof;

FIG. 3 is a rear elevation view of thereof;

FIG. 4 is a left side elevation view of thereof;

FIG. 5 is right side elevation view of thereof;

FIG. 6 is a top plan view of thereof; and,

FIG. 7 is a bottom plan view of thereof.

The broken lines shown in the drawings illustrate portions of the vending machine that form no part of the claimed design. 

CLAIM The ornamental design for a vending machine, as shown and described. 